Just realized that simple change of brush can make big differences.........wanna to know how to create this perticular type of brush stroke (a solid tip and a very long gradually transperant tail)....Can anyone tell me please?

. . . also depending on brush type and image resolution. Spacing set to 1 at 6k+ 16bit is slooow.

Yeah, especially if you have brushes with a lot of weird edges and tiny details. Once I figure out what spacing works best for the brush, I like to make a new preset of it and delete the old brush, that way I won't have to constantly change the spacing._________________DeviantARTFacebook

If you want the brush to fade off after the same distance with every stroke, set the Opacity control under 'Other Dynamics' to fade and pick a pixel count for the length of the stroke. Just play and see what they all do. When in doubt, experiment._________________http://sketchling.cghub.com